Spinning spindle



Oct. 22, 1929.

E. A. PERKINS SPINNING SPINDLE Filed April 6, 1923 3 Sheets-Sheet 2 /TTORNEY Oct. 22, 1929. Y E. A. PERKINS 1,732,614

SPINNING SPINDLE filed April e, 192s s sheets-sheet ,3

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Patented @et 22, 1929 UNlTED STATES PATENT OFFICE EDWIN A. PERKINS, OF JAMAICA, NEW YORK; HELEII C. PERKNS, EXECUTRIX F THE ESTATE OF EDWIN A. PERKINS, DECEASED, ASSIGNOR TO NORMA-HOFFMANN BEARING-S CORPORATION, OF STAMFGRD, CUNNECTCUT, A CCREORATION 0F NEW YORK SPINNING SPINDLE Application filed April 6,

My invention relates to spinning spindles, and the novelty consists in the arrangement and adaptation of the parts, as will be more fully hereinafter pointed out.

ln vertical high speed spinning spindles the out of balance load sideways causes so much load on the lower journal which carries this load in the spindles of the present art that said bearing soon wears, and this causes sideplay at this journal and on the pivot which produces chatter in the spindle. Such chatter or jumping oli the spindle makes an uneven twist in the thread and thereby spoils such parts of it for commercial purposes.

My spindle solves this problem by furnishing an elongated pivot whose upper end supports the rotating spindle and whose lower end rests in a bearing in the stationary base. The upper end can accommodate itself to side play due to wear in the separate journal bearings while the lower end remains without chatter in its bearing. The upper end is located at or near the centre oit gravity where there is the least side play, thereby eliminating any chatter of the spindle and twisting the thread in a steady even way so that there is no loss through uneven twisting. My device also automatically furnishes perfect lubrication to all bearings, reduces friction and wear in the bearings and reduces the power required and also the cost of renewing the parts.

Referring to the drawings Figure 1 is a vertical section of one embodiment of my device showing part ot the oil filling means and mounting broken away `for convenience in il` insti-ation; Figure 2 is a vertical. section of the blade and whirl of my device; Figure 3 is a vertical section of the base member as shown in Fig. 1 Figure 4t is an elevation oi' the pivot blade; Figure 5 is a vertical section of another embodiment of my device, connecting parts being shown in dotted outline for convenience in illustration; Figure 6 is a vertical section of the base member shown in Fig. 5; Figure 7 is a vertical section of the blade shown in Fig. 5; Figure 8 is an elevation oi' the pivot blade shown in Fig. 5; and Figure 9 is a crosssection on the line QMQ of Fig. 8.

1923. Serial No. 630,220.

In Figs. `1 to i et the drawings, 10 is a base member having a central boring 11 which is larger at the upper end, thereby forming a lip 12 from which is cut a groove 13 adapted to drain any oil collecting on the lip 12, and has an oil iiller 14 not completely illustrated but which may be in any suitable form. ln the lower end of the central boring 11 is mounted an insert or button 15 having a spherical bearing 16. Said base member 10 has an external threading 17 over which a nut 1S is adapted to be threaded so as to fasten said base member 10 to a spinning table 190i usual construction.

A. blade 2O has a longitudinal boring 21, and at the upper end of the boring 21 is a button 22 inserted by a drive lit, and in which is a spherical bearing 23. The blade 2O has a cylindrical cut-out portion 24: adapted to reduce the bearing surface of said blade as it lits into the longitudinal boring 11 of the base member 10. A pivot blade 25, preferably having a square cross section as shown in Fig. 9, also has a spherical bearing 26 at the lower end anda spherical bearing 27 at the upper end, and said pivot blade is adapted to be mounted in the boring 21 of the blade 2O so that the spherical bearing 26 will set into the bearing 16, and the upper spherical bearing 27 of the pivot blade 25 will support the blade 20 setting into the spherical bearing 23 so that the squared portion of 25 immediately below the spherical bearing 27 will loosely fit a square opening immediately below the spherical bearing 23. A whirl 28 is adapted to fit over said blade 20 by a drive iit so as to be rigidly secured thereto. The oil level is shown at 29 and so lubricates all lower bearings, and as the belt is brought in contact with the whirl in the usual manner the blade 20, integral with the whirl 23, rotates with the whirl supported as d-escribed on said pivot blade and the oil will by splashing be carried up also into the upper bearing 23.

ln Figures 5 to 9, inclusive, is shown another embodiment of my invention in which 30 is a base member having a central boring 31 in the base of which is mounted a button 32 by a drive ,tit which has a spherical bearing 33 therein. The basel member 3() also has an external threading 34 whereby the base member 39 may be secured by means eta nut 36, adapted to turn up on said threading 34 with spiral spring 35 between, to an arm 37 mounted in the usual manner on a spinning table as shown in dotted outline in Fig. 5.

lThe base member 30 also has an oil containing` cup member 38 and an oil filler 39 with the usual gravity cover is connected to said oil container 38 by means of a passageway 49. A cylindrical support member 41 having a cylindrical central boring 42 is adapted to be driven into the base member 30 by a drive fit, and this support member 41 has an external Cylindrical cut-out 43 adapted to reduce the bearing surface between. said member 41and ablade 44 which has a cylindrical vcentral boring 45 adapted to lit over said support member 41. The supportmember 41 has a boring 46 adapted to permit the oil to pass from the cup member 33vinto the central boring 42 and thence into the central boring 31 of the base member 30. Saidsupport member 41 also has a boring 47 adapted to permit oil to pass from the central cylindrical boring 42 to the lower part oit the central cylindrical boring 45 of the blade 44. Y TheV cylindrical boring 45 of the blade 44 has a square cut-out portion 48 at its upper end, which cut-out 48'terminates at its upper end in a spherical bearing 49. A whirl or. belt pulley 50, preferably made of tubing, rigidly secured to a head plug 51 and afoot plug 52 is adapted to be driven over the blade 44 so as to be rigidly secured thereto by this drive tit. rlhis construction of the whirl is economical and substantially reducesthe weight, and thereby increases the eiiiciency of the spindle. A pivot blade 53 having fourflat sides forming a substantially square cross-section and terminating in an upper spherical bearing 54 and a lower spherical bearing 55. The pivot blade 53 is adapted to be inserted in the longitudinal boring 42 of the support member 41 so that the spherical bearing 55 willrest on the spherical bearing 33 in the button 32, andthe blade 44 carryin g the whirl 50 integral therewith can then beslipped over the support member 41 which is adapt-ed to slide into the cylindrical boring of the blaue 44, and the spherical bearing of the pivot blade 53 will then seat in the spherical bearing 49 of the blade 44 and the square portion of the pivot blade 53 immediately below the spherical bearing 54 will loosely engage the square opening 48 of the blade 44. rlhis results in the blade 44 being vsupported on the pivot blade 53, and as the blade 44 together with the whirl 50 integral therewith is rotated the pivot blade 53 because `ot t-he engagement of the upper square end in Vthe square pocket 48 of the blade 44 will turn with the blade 44. ln Figure 5 the line 56 'represents the line of the centre of gravity when the spindle is ruiming light, and the line 5'? represents the centre of gravity when the spindle is carrying its usual load, and it will be noted that the pivot blade 53 supports the blade 44 on the spherical bearing 54, which registers in the spherical bearing 49 ci the blade 44 at a point between the lines 56 and 57. ln other words the point of support for the blade 44 is as near the centre of gravity with the blade 44 loaded or unloaded as possible.

ln the operation of the spindle illustrated in Figures 5 to 9, inclusive, a belt 58, against which the spindle is pushed so as to bring the tace of the whirl 50 against said belt 53, sets the whirl 50 and blade 44 rigidly secured to Vthe whirl 50 in rotation, and the pivot blade 53, as already described, will rotate with the blade 44 riding on the spherical bearings 54 an 55, which bearings permit a ball and socket action so as to eliminate friction and prevent the wearing of said bearings, thereby permitting the pivot blade 53 to swing slightly out ot a true vertical position while rotating with the blade 44, but doing so most easily because the pivot blade 53 supports the blade 44 at the spherical bearings 49 and 54 which is close to the centre of gravity. rl`his construction and operation prevents the unusual wearing of the spherical bearings 49, 54, 55, and 33, and thereby eliminates the possibility of chattering and jumping from this source. IThe support member 41 has journals 59 which tale up the side load, and as they are located independently of the pivot bearings and are placed in the most advantageous position at about the centre line of the belt pull the slight wear of these journal bearings 59 can now have no appreciable e't- 'feet on the pivot blade bearings 54 and 55, so that any chatter or umping is positively eliminated.

n the spindle shown in Figures 5 to 9, inclusive, the oil level is shown at 60, and the oil will pass through the boring 4G into the boring 31 of the base member 30 and be carried up on the pivot blade 53 from the level 60 to the boring 47 where the oil will pass through slowly on to the lower portion of the cylindrical boring 45 of the blade 44 and running down will form a closure of the openingbetween the lower edge ot the cylindrical boring 45 and the support member 41, whereupon as the oil is thrown oil trom the lower outer edge ot' the whirl 50 there will be caused a rapid pumping action drawing the oil up on the pivot blade and down over the outside of the support member 41, the boring 47 acting as a priming member to eil'ect the starting ot' this pumping action so that the oil will be kept in continuous pumping circulation as described with the rotation of the blade 44.

A bobbin of usual construction is shown mounted on the blade 44 in Figure 5.

I claim:

l. ln a spinning spindle a base member adapted to hold oil and having means for lilling the same, a spinning blade supported on said base having a central boring in which is mounted a pivot blade having at its lower end a spherical bearing supported in a spherical bearing in said base member and supporting said spinnning blade by a spherical bearing at its. upper end in a spherical bearing in the upper end of said boring, said bearing being adjacent the center of gravity of the spindle, said pivot blade having a square portion just below its upper end which engages loosely a square portion immediately below the spherical bearing in said boring and a whirl rigidly secured to said Spinning blade.

2. In a spinning spindle a base member adapted to hold oil and having means for lilling the same, a spinning blade supported on said base having a central boring in which is mounted a pivot blade having at its lower end a spherical bearing supported in 'a spherical bearing in said base member and supporting said spinning blade by a spherical bearing at its upper end in a spherical bearing in the upper end of said boring, said bearing being adjacent the center ot gravity ot the spindle, said pivot blade having a square portion just below its upper end which engages loosely a square portion immediately below the spherical bea-ring in said boring, a whirl rigidly secured to said spinning blade, and means for automatically lubricating all bearings.

3. ln a spinning spindle a base member adapted to hold -oil and having means for tilling the same, a pivot blade support member having a central boring and being rigidly mounted in said base member, a spherical bearing in said base member, a pivot blade mounted in said support member and having a spherical bearing at its lower end, a spinning blade having a central boring mounted over said pivot blade support, said spinning blade having a spherical bearing at the upper end oit the central boring adapted to be engaged by a spherical bearing on the upper end of the pivot blade, said pivot blade having its upper end adjacent the center of gravity of the spindle, said pivot blade having a squared portion below said bearing loosely engaging square sides of the opening in the base ot said spinning blade, and a whirl rigidly secured to said spinning blade.

fl. ln a spinning spindle a base member adapted to hold oil and having means for lling the same, a pivot blade support member having a central boring and being rigidly mounted in said base member, a spherical bearing in said base member, a pivot blade mounted in said support member and having a spherical bearing at its lower end, a spinning blade having a central boring mounted over said pivot blade support, said spinning blade having a spherical bearing at the upper end of the central boring adapted to be engaged by a spherical bearing on the upper end of the pivot blade, said pivot blade having its upper end adjacent the center of gravity of the spindle, said pivot blade having a squared portion loosely engaging square sides of the spherical bearing in said spinning blade, a whirl rigidly secured to said spinning blade, and means for automatically lubricating all bearings, comprising two borings in said pivot blade support member adapted to establish and maintain with the rotating of the spinning blade and whirl a perfect circulation of the oil to all bearings.

5. In a spinning spindle means for holding oil and means for lling said holding means, a whirl and blade rigidly secured together and supported by a pivot support on said oil holding means near the centre of said spindle at the upper end ot' said pivot support and which support rotates with said blade and whirl. said support being relatively long, and a member attached to said holding means projecting into the blade and having separate bearings near the center line oi' belt pull adapted to engage the blade and carry the side load of said spindle.

6. In a spinning spindle means 'for holding oil and means `for filling said holding means, a whirl and blade rigidly secured together and supported by a pivot support on said oil holding means near the centre ot said spindle at the upper end of said pivot support and which rotates with said blade and whirl, said support being relatively long, a member attached to said holding means projecting into the blade and having separate bearings near the centre line of belt pull adapted to engage the blade and carry the side load of said spindle, and automatic means for continuously lubricating said bearings when running.

7'. In a spindle, a base member, hollow support member fixed at one end within the base member, the base member having a bearing adjacent the inner end of the support member, a spinning blade having a bore in which the support member projects, the support member providing separate bearings to en gage the spinning blade adjacent the inner and outer ends of said bore, a relatively long pivot blade engaging the bearing in the base member at one end and the inner end oi' the bore of the spinning blade at the other and a whirl secured to the spinning blade and having one end entering an opening in the base member.

8. The spinning blade according to claim 7 wherein the support member has openings communicating with the inside of the support member and the inside of said spinning blade and said base member.

In testimony whereof I aiiix my signature.

EDWIN A. PERKINS. 

